LDN 988, LBN 409, Sh2-120, Sh2-121, GN 21.01.3, NGC 7031 (oc), [C86] L988a, LDN 982-4, LDN 1000; Cygnus
Astro Systeme Austria N12 f/3.5 astrograph (Lum)
Tele Vue 127is f/5.2 refractor (color data)
KAI-11000M/CM, M (Lum), CM (OSC)
Total Exposure Time: 11 Hours, L:OSC 390:270 minutes, unbinned
July 2009, Inkom, ID
Comments: This region in Cygnus is overlooked for the more famous targets of the region. When I decided to image the region I decided to shoot as deep as reasonably possible to see what treasures might exist around the dark nebula LDN 988. I was unaware of the two obvious blue reflection nebulae GN 21.01.3 and LBN 409. GN 21.01.3 looks like a small Iris Nebula (NGC7023) to me. The emission nebula in the upper right of the image near the open cluster NGC 7031 is uncataloged as far as I can tell -- no HII nebulae is noted near NGC 7031 according to SIMBAD. Another interesting object is [C86] L988a. This is a looped nebula in LDN988. This would be a great target for a large aperture, longer f.l. instrument. You can see it better, as well as LDN988, in the cropped image below. Sh2-120 and 121 are the two small HII regions left of center. Faint dust makes some of the backgrouind appear blue from reflection.
Note: the background has been carefully stretched so that the faint nebulous clouds can been seen. This makes all but the densest dark nebulae translucent. Also, the luminance data is a two frame mosaic.
The color data image shows a wider FOV. It may be seen here.